Conference netcad::hub_mgnt

351.0. "SOme DECbrouter Protocol Translation questions" by CENPCS::BIRMINGHAM (Does anyone know who is in charge here...) Tue Aug 24 1993 16:25

Greetings,

	I am currently delivering consulting services to a banking industry 
customer here in Charlotte, NC. Our customer is using three methods of 
terminal connectivity - LAT from the LAN in Charlotte, X.29 calls from X.25 
PAD equipment brought in over a satellite-based X.25 private network, and 
TELNET via an extended LAN segment connected to the Charlotte backbone LAN 
segment and TCP/IP Services for VMS. The terminals connect to a VAXcluster 
consisting of two VAX6610's and a VAX7610.

	After reading the Sales Update description of the DECbrouter90, and 
the information about protocol translation, specifically the LAT-TELNET-LAT 
and the X.25-LAT translations, the data suggests that this product may be 
effective is solving some current and future issues for us regarding termnal 
connectivity. However, the SPD and Sales Update article fall short of 
providing the necessary technical information.

	Can you please provide answers to the following questions:


1. What is the part number for the DECbrouter 90 Technical Manual and
   DECbrouter Management Guide ? Are they available over the Easynet ?


2. Can I accomplish the following connectivity:



2.A	VAX <-> LAT Protocol <-> DECbrouter90 <-> IP-Network <-> TELNET Host

	Can a PC Workstation using TCP/IP place a TELNET call to the
	DECbrouter90 and get connected via LAT to the VAXcluster AND
	take advantage of load-balancing in a manner similar to a LAT based 
	terminal server ?

2.B

    VAX <-> LAT Protocol <-> DECbrouter90 <-> X.25 PSDN <-> X.25 PAD <-> VT420

	Can a VT420 terminal user connected to a PAD call the X.25 DTE 
	address associated with the DECbrouter X.25 PSDN connection and get 
	connected to the VAXcluster AND take advantage of load-balancing in a 
	manner similar to a LAT based terminal server ?


3. 	If the answer to 2.A is YES, then how is the IP to LAT host address
	translation performed ? Is it static assignment or dynamically 
	assigned ? 

4. 	If the answer to 2.A is YES, how many TELNET calls can a single 
	DECbrouter90 handle ?

5. 	If the answer to 2.A is YES, how do I create an outgoing call to 
	an TELNET capable host ( probably DS90TL) for doing printing ?

6. 	If the answer to 2.A is YES, can I send IP over an X.25 datalink
	( I may want to use the satellite network and migrate from X.29
	  calling to TELNET) ?

7. 	If the answer to 2.B is YES, then how many Switched Virtual 
	Circuits can a single DECbrouter90 handle ?

8. 	If the answer to 2.B is YES, how do I create an outgoing call to 
	an X.25 PAD for doing printing ?

9. 	If the answer to 2.B is YES, will the incoming calls be load 
	balanced between VAX systems in the cluster 	?

10. 	If the answer to 2.B is YES, how do I create an outgoing call to 
	an X.25 PAD for doing printing ?


	Thanks for taking the time to answer these questions.

Regards,

George Birmingham

  please post your entry in KALI::DEWBR conference,
 dedicated for DECbrouter90 products

  rgds

  Jean-Yves

    Done ! Thanks for the pointer to the DECbrouter90 Conference.
    
    George :-)